awk -F " " '{print $7,$16}' lab4.txt > tmp1
awk -F '["/ ,]' '$7~/^3202/ {print $7,$9}' tmp1 > tmp2
awk -F " " '{print $1}' tmp2 | sort | uniq | wc -l
awk '{count[$2]++} END {for (line in count) if (count[line] > 1) print line}' tmp2
